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For tungsten, the melting point is 3600 (K). It seems to mee that the normal temprature of a tungsten cathode is around 2700 (K).

I just got an equation which governs the electron emission of a hot body. That is the so call Richardson equation : I = A T^2 exp(-b/T), where A and b are the two constants. [I] = ampere/cm^2. I used this formula and assumed that the emission area of a tungsten cathode in a television is around...

I am a novice, then I care about some free codes for students. I am caring about some code to compute reactor physics like neutron distribution, lattice calculation, thermohydro calculation ... Thanks for the above news, anyway.

Do you know any code for reactor physics study ?

Thanks berkeman, Here is a link mentioned the pA of the currents: http://www.coursework.info/i/172.html [Broken] I agree with you that a CRT needs lead mixed glass envelope to shield the EM radiation. I went through the link you gave but it seems that the mentioned few mA current is the...

Thanks , But I still have a doubt about the number of few mA current. Since this few mA current is actually can produce a considerable bunch of bremstralung rays when the hit the phosphorus coated screen, so harful to the audiences. So if you or anyone has some specifications of a tv from the...

Hi , I have a wonder about the real size of a tivi (sony, toshiba...) e-gun, how it works and what's the maximum e-current of it ? Please tell me something about it.